1220326 has 4 divisors (see below), whose sum is σ = 1830492. Its totient is φ = 610162.

The previous prime is 1220309. The next prime is 1220327. The reversal of 1220326 is 6230221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305080 + ... + 305083.

It is an arithmetic number, because the mean of its divisors is an integer number (457623).

2^1220326 is an apocalyptic number.

1220326 is a deficient number, since it is larger than the sum of its proper divisors (610166).

1220326 is an equidigital number, since it uses as much as digits as its factorization.

1220326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610165.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1220326 is about 1104.6836651277. The cubic root of 1220326 is about 106.8624896725.

Adding to 1220326 its reverse (6230221), we get a palindrome (7450547).

The spelling of 1220326 in words is "one million, two hundred twenty thousand, three hundred twenty-six".